Optimized PCM Switches and Capacitors: Basic Building Blocks for RF and Microwave Subsystems

Pierre Blondy; Nicolas Le Gall; Idoia Ugarte Olcoz; Ines Bettoumi; M. Lajaate

doi:10.1109/mmm.2023.3332323

January 10, 2024IEEE Microwave Magazine

Optimized PCM Switches and Capacitors: Basic Building Blocks for RF and Microwave Subsystems

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Key Points

Identify and evaluate the critical performance metrics of phase change material switches and capacitors used as foundational building blocks in radio frequency and microwave systems.
Reviewed high-frequency signal routing mechanisms across mobile phones, telecom infrastructures, test equipment, and antenna arrays.
Analyzed key electrical parameters governing device efficiency, focusing on signal perturbation, insertion loss, port-to-port isolation, linearity, and physical compactness.
Low insertion loss and high port-to-port isolation serve as essential benchmarks for minimizing signal degradation during high-frequency routing.
Preserving signal linearity within compact footprints is critical for integrating switching elements into densely packed communications hardware.

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Implication

Technical review reveals performance requirements for PCM switches in microwave subsystems, highlighting the importance of low insertion loss and high isolation.

Abstract

Switches[1]are basic building blocks of many radio frequency (RF) and microwave subsystems. For instance, they are widely used in cell phones, telecom infrastructures, test equipment, antenna systems, and communications at large. These devices are used to route RF signals from one port to another, with as little perturbation as possible in the signal. Insertion loss, port-to-port isolation, linearity, and compactness are key characteristics of these components.

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Blondy et al. (2024) studied this question.

synapsesocial.com/papers/6a98247c7f1bd40ee0e35cef https://doi.org/10.1109/mmm.2023.3332323

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Optimized PCM Switches and Capacitors: Basic Building Blocks for RF and Microwave Subsystems

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Optimized PCM Switches and Capacitors: Basic Building Blocks for RF and Microwave Subsystems

Key Points

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Implication

Abstract

Discussion

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